Device for flushing tanks



(No Model.) 3 Sheets-Sheet 2. A. ROSEWATER. DEVICE FOR PLUSHING TANKS,SINKS, &c.

Patented June 16, 1885.

WITNESSES O6 M 9 4;

u. PETERS, Pholo-hfiwgnphen Wuhinglun. o. c.

3 SheetsSheet 3.

(No Model.)

A. ROSEWATER.

DEVICE FOR PLU'SHING TANKS, SINKS, &c.

N0 320,898. Patented June 16, 1885.

1.7V V'EJV TOR Attorneys.

WITNESSES N. PEYERS. PholwLilhngnphar. wanhm mn, 0. c.

UNTTED STATES PATENT @EETQE.

ANDREW ROSEYVATER, OF OMAHA, NEBRASKA.

DEVICE FOR FLUSHING TANKS, SEN KS, 84.0.

SPECIFICATION forming part of Letters Patent No. 320,398, dated June 161885.

Application filed April 14, 1885. (No model.)

To all whom it may concern:

Be it known that 1, ANDREW Rosnwn'rnn, of Omaha, in the county ofDouglas and State of Nebraska, have invented certain new and usefulImprovem nts in Devices for Flushing Tanks, Sinks, &c.; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification, and inwhich- Figure l is a vertical sectional view of a tank provided with myimproved flushing device for sewers, kitchen-sinks, or similar means ofsewage. Fig. 2 is a similar view, on an enlarged scale, of the device.Fig. 3 is a vertical sectional view of a tank provided with amodification of the device. Fig. 4 is a similar view of anothermodification of the device. Fig. 5 is a sectional detail view, on anenlarged scale, of a portion of the modification shown in Fig. 3; andFig. 6 is a detail view of the valve mechanism shown in Fig. 4.

Similar letters of reference indicate corresponding parts in all thefigures.

My invention has relation to devices for automatically flushing tanks insewers, kitchen-sinks, or similar sewage apparatus; and it consists inthe improved construction and co mbination of parts of the same, ashereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates the tank into whichthe delivery-pipe B opens, and an inverted siphon-pipe, G, has itsupwardly-bent end opening into the bottom of the tank, and has anair-pipe, D, opening in the upper portion of its other leg, which opensinto the sewer, the said air-pipe opening into the tank with its upperend above the high-water levelof the tank. A bell-shaped air-chamber, E,is supported upon feet F in a recess, G, in the bottom of the tank, andhas its open lower end placed over the open end of the siphon-pipe O,which opens in the said recess, and a pipe, H, enters the top of thisair-chamber through an opening, I, in the same, and is formed with acylindrical chamber, J, at its upper end. The lower end of this chamberis provided with a Valveseat, K, upon which fits a conical valve, L,having an upwardly-projecting stem, M, upon which is secured acylindrical float, N, and which has its upper end guided in a verticalbearing in a crossbrace, O, in the chamber. The upper end of the chamberis provided with a cover, P, and has a number of perforations, Q, whichare above the high-water level, and the lower end of one leg of asiphon-pipe, It, enters the chamber at its lower end above thevalve-seat, while its other leg enters a pipe, S, the upper end of whichopens above the high-water level, and the lower end of which opens intoa bellshaped chamber, T, supported above the bottom of the recess G inthe bottom of the tank, having its widemouth extending below thelowwater level, the lower end of the pipe S being above the said level.The upwardly-bent lower end of a pipe, U, enters this chamber, havingthe said end projecting at the low-water level, and the upper end ofthis pipe enters pipe Hbelow the valve seat. The high-water level isindicated in the drawings by a dotted line, a; x, and the low-waterlevel by a dotted line, 3! y, and the upper bent end of the siphon-pipeR is in the high-water level. It will now be seen that as the fluidrises in the tank it will enter pipe S through the bell-shaped chamberat its lower end, and will rise in the siphon-pipe R until it reachesthe doubled end of the same, when it will descend through itsdownwardlybent leg and enter the chamber J, where it will raise thefloat, and thus raise the valve, which will allow the air compressedwithin the airchainber E to escape, and allow the fluid in the tank torush into the said chamber and from it through the inverted siphon-pipeG into the sewer. As the fluid sinks in the tank, its level will fallbelow the end of the siphon-pipe R in pipe S, and the fluid will bedrawn out of the chamber J, allowing the float and valve to settle,while the fluid will continue to be drawn into the open end of theinverted siphon-pipe O, the air-chamber serving as one leg of a siphonuntil the fluid reaches below the lowwater level, when the upwardly-bentend of pipe U will be uncovered, allowing air to enter into pipe H andthe air-chamber, which will stop the flow ofthe fluid until the fluidagain arrives at high-water level. The open end of siphon-pipe U is ashort distance above the low-water level, which will prevent any fattyor greasy matter which will naturally float on the surface of the fluidfrom entering the siphon-pipe, the lower edge of the mouth of theair-chamber being below the low-water level, and no fatty or greasymatter can enter chamber T or pipe S, as the mouth of the said chamberis also below the low-water level, thus preventing any obstruction ofthe pipes by accumulated fat or grease upon the inner sides of the same,the said matter remaining in the tank until the latter may be cleanedfrom such matter by hand.

In Fig. 3 is shown a modification of the flushing device, in which pipeH is dispensed with, the chamber J being placed immediately over theaperture I in the top of the air-chamber, and pipe U enters the top ofthe air-chamber in place of entering pipe H.

The operation of this device is similar to the operation just described,the difference between the two devices being merely in the constructionof the valve-chamber.

In Fig. 4 pipe H is shown extended up above'high-water level and formedat its upper end with the valve-seat and with a number of perforationsaround its closed top, and the chamber J is placed at the side of pipeH, opening into it from its middle, the stem of the float M, which iswithin the chamber, passing up through the top of the chamber and intothe upper end of pipe H, which is bent to be at the same axis as thechamber, where it is secured in the valve, the stem being bifurcated, asshown at V, and passing up on both sides of the upper end of pipe H,having the upper ends of this bifurcated portion secured to a yoke, W,from which projects a shorter stem, X, which passes through astufling-box, Y, in the closed top of pipe H, to the lower end of whichthe valve is secured. By this construction the fluid does not come incontact with the valve, preventing any possible cloggin g of the valveby impurities in the fluid.

It follows that other modifications may sug gest themselves duringpractice with the device, and I desire it understood that I do notconfine myself to the exact construction as shown and described, butwish to reserve the right of any modifications made without departingfrom the spirit of the invention.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- 1. In a flushing device for sewersand similar apparatus, the combination of a tank, an invertedsiphon-pipe having one end opening above the bottom of the tank andhaving its other end passing into the discharge-pipe, a bell-shapedair-chamber placed with its month over the open end of the siphon-pipe,and

means, substantially as described, for allowing the compressed air inthe chamber to escape,

, allowing fluid in the tank to rush out through the chamber and siphonpipe, as and for the purpose shown and set forth.

2. In a flushing device for sewers and similar apparatus, thecombination of a tank, a discharge-pipe shaped as an inverted siphon,

having its open end projecting above the bottom of the tank, abell-shaped air-chamber placed with its open mouth over the open end ofthe siphonpipe and provided with a valveseat in its top, a valve playingupon the said valve-seat, a tube or chamber extending from thevalve-seat to above the high-water level in the tank, and means foropening the valve when the fluid in the tank reaches high-water level,as and for the purpose shown and set forth.

3. In a flushing device for sewers and similar apparatus, thecombination of a tank, a discharge-pipe shaped as an inverted siphon,having its open end projecting above the bottom of the tank, abell-shaped air-chamber placed with its open mouth over the open end ofthe discharge-pipe and provided with a valve-seat in its top, a valveplaying upon the said valve-seat and opening upward, provided with afloat, a casing extending from the valve seat to above the high-waterlevel, and a siphon-pipe having its knee at high-water level, and havingone leg entering the lower end of the casing above the valve-seat andhaving its other leg opening near the bottom of the tank, as and for thepurpose shown and set forth.

4. In a flushing device for sewers and similar apparatus, thecombination of a tank, a discharge-pipe shaped as an inverted siphon,havingiits open end projecting above the bottom of the tank, abell-shaped air-chamber placed with its open month over the open end ofthe discharge-pipe and provided with a valve-seat in its top, a casingextending from the said valve-seat to above the high-water level, an upwardly-opening valve playing upon the valve-seat and provided with afloat, a vertical pipe open at its top and formed with a cup or chamberat its lower end raised above the bottom of the tank, a siphon-pipeopening with one leg in the said pipe and with its other leg in thecasing above the valve-seat, and having its knee at high-water level,and a pipe having its lower upwardly-bent end opening into the chamberat the lower end of the vertical open pipe and having its upper endopening into the air-chamber below the valve-seat, as and for thepurpose shown and set forth.

5. In a flushing device for sewers and similar apparatus, thecombination of a tank, a

. discharge-pipe, U, shaped as an inverted siphon,and having its openend projecting above the bottom of the tank, the air-chamber E, havingpipe H, casing J, having valve-seat K, closed top P, and perforations Q,valve L, having float N, vertical pipe S, having chamber 1 at its lowerend, siphon-pipe R, opening in pipe S and in casing J, and having itsknee in high-water level, and pipe U, having its lower upwardly-bentend'opening in chamber '1 and having its upper end opening in pipe H, asand for the purpose shown and set forth.

6. In a flushing device for sewers and similar apparatus, thecombination of a tank havchamber, as and for the purpose shown and ing arecess in its bottom, an inverted siphonset forth.

shaped discharge-pipe having its open end In testimony that I claim theforegoing as projecting above the bottom of the said recess, my own Ihave hereunto affixed my signature 5 and an air-chamber placed with itsmouth over in presence of two Witnesses.

the open end of the siphon-pipe, and having ANDREW ROSEWATER.

its lower edge below the low-water level in the tank, and means tosupply air to the airchamber when the water-level is at low-water 10mark and above the lower edge of the air- Witnesses:

Gno. W. TILLsON, Tnos. MCLEAN.

